Home / 39,353.13-54,308.47-21,449.29

Finding the Fourth Proportional to 39,353.13, 54,308.47 and 21,449.29

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Solution

The fourth proportional to 39,353.13, 54,308.47 and 21,449.29 is: 29,600.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,353.13 : 54,308.47 = 21,449.29 : x
  2. Step 2: Convert to fraction form
    39,353.13/54,308.47 = 21,449.29/x
  3. Step 3: Cross multiply
    39,353.13x = 54,308.47 × 21,449.29
  4. Step 4: Simplify right side
    39,353.13x = 1,164,878,122.49
  5. Step 5: Solve for x
    x = 1,164,878,122.49/39,353.13
  6. Step 6: Final answer
    x = 29,600.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.